Contrast Sonography for Evaluation of Liver Tumors Prior to Radiofrequency Ablation

July 10, 2017 updated by: University of California, Davis

The purpose of this study is to determine the efficacy of the Definity (perflutren lipid microsphere Injectable Suspension) ultrasound contrast agent in identifying small tumors (hepatomas & metastases) within the liver.

Primary objective: To estimate the increase in conspicuity of small intrahepatic tumors with contrast-enhanced sonography

Secondary Objectives: To estimate the effect of tumor type, size, location and depth on the conspicuity of small tumors on contrast-enhanced sonography

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

An estimated 75 patients (age 18 years of age or older) will be enrolled from the population of patients who present for ultrasound-guided radiofrequency ablation (RFA) of CT or MRI-confirmed multiple primary hepatocellular carcinoma (HCC) or metastatic carcinoma, with at least one of the tumors being ≤ 1.5 cm in diameter.

Study Type

Interventional

Enrollment (Actual)

8

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Sacramento, California, United States, 95817
        • UC Davis Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients with primary hepatocellular carcinoma (HCC) or secondary (metastatic) carcinoma of the liver who have been referred for ultrasound-guided radiofrequency ablation (RFA) treatment
  • Recent (within 90 days) CT or MRI scan with report of one or more tumors ≤ 1.5 cm in diameter
  • Patient is stable and is to be managed conservatively (i.e. non-surgically)
  • 18 years of age or older
  • Ability and willingness to provide written informed consent

Exclusion Criteria:

  • Known or suspected cardiac shunt(s)
  • Known sensitivity to octafluoropropane
  • Pregnant or breastfeeding

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Contrast sonography
Contrast-enhanced sonography perflutren lipid microspheres
Drug: perflutren lipid microspheres
perflutren lipid microspheres IV in 0.1 cc doses, as needed, to enhance lesion conspicuity
Other Names:
  • Definity

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percent of Tumors With Increased Echogenicity (Brightness) Following Contrast-enhanced Sonography
Time Frame: 15 min
After the systemic iv injection of ultrasound contrast, the real time ultrasound images are visually evaluated, and small intrahepatic tumors are detected on the images. The images pre-contrast and post contrast are compared visually. One tumor per participant was analyzed.
15 min

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With an Increase in Echogenicity (Brightness) of Small Intrahepatic Tumors Following Contrast-enhanced Sonography Based on Tumor Type, Size, Location and Depth
Time Frame: 15 min
Visual estimation of the the effect of tumor type, size, location and depth on the conspicuity of small tumors on contrast-enhanced sonography using prior assessment or pathology for tumor type
15 min

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of California, Davis

Investigators

  • Principal Investigator: John P. McGahan, M.D., UC Davis School of Medicine Dept. of Radiology

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2007

Primary Completion (Actual)

March 1, 2009

Study Completion (Actual)

March 1, 2009

Study Registration Dates

First Submitted

December 21, 2007

First Submitted That Met QC Criteria

December 21, 2007

First Posted (Estimate)

January 2, 2008

Study Record Updates

Last Update Posted (Actual)

July 11, 2017

Last Update Submitted That Met QC Criteria

July 10, 2017

Last Verified

July 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 200715241

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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